package com.mune.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.mune.common.utils.R;
import com.mune.gulimall.product.entity.SkuImagesEntity;
import com.mune.gulimall.product.entity.SpuInfoDescEntity;
import com.mune.gulimall.product.feign.SeckillFeignService;
import com.mune.gulimall.product.service.*;
import com.mune.gulimall.product.vo.SeckillInfoVo;
import com.mune.gulimall.product.vo.SkuItemSaleAttrVo;
import com.mune.gulimall.product.vo.SkuItemVo;
import com.mune.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureOrder;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mune.common.utils.PageUtils;
import com.mune.common.utils.Query;

import com.mune.gulimall.product.dao.SkuInfoDao;
import com.mune.gulimall.product.entity.SkuInfoEntity;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {
  @Autowired
  SkuImagesService skuImagesService;
  @Autowired
  SpuInfoDescService spuInfoDescService;
  @Autowired
  AttrGroupService attrGroupService;
  @Autowired
  SkuSaleAttrValueService attrValueService;
  @Autowired
  ThreadPoolExecutor threadPoolExecutor;
  @Autowired
  SeckillFeignService seckillFeignService;

  @Override
  public PageUtils queryPage(Map<String, Object> params) {
    IPage<SkuInfoEntity> page = this.page(
            new Query<SkuInfoEntity>().getPage(params),
            new QueryWrapper<SkuInfoEntity>()
    );

    return new PageUtils(page);
  }

  @Override
  public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
    this.baseMapper.insert(skuInfoEntity);
  }

  @Override
  public PageUtils queryPageByCondition(Map<String, Object> params) {
    QueryWrapper<SkuInfoEntity> wrapper = new QueryWrapper<>();
    String key = (String) params.get("key");
    if (!StringUtils.isEmpty(key)) {
      wrapper.and(w -> {
        w.eq("sku_id", key).or().like("sku_name", key);
      });
    }
    String catelogId = (String) params.get("catelogId");
    if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
      wrapper.eq("catelog_id", catelogId);
    }
    String brandId = (String) params.get("brandId");
    if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
      wrapper.eq("brand_id", brandId);

    }
    String min = (String) params.get("min");
    if (!StringUtils.isEmpty(min)) {
      wrapper.ge("price", min);
    }
    String max = (String) params.get("max");
    if (!StringUtils.isEmpty(max)) {
      try {
        BigDecimal bigDecimal = new BigDecimal(max);
        if (bigDecimal.compareTo(new BigDecimal("0")) > 0) wrapper.le("price", max);
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
    IPage<SkuInfoEntity> page = this.page(
            new Query<SkuInfoEntity>().getPage(params),
            wrapper
    );
    return new PageUtils(page);

  }

  @Override
  public List<SkuInfoEntity> getSkuBySpuId(Long spuId) {

    List<SkuInfoEntity> list = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id", spuId));
    return list;
  }

  @Override
  public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
    SkuItemVo skuItemVo = new SkuItemVo();
    CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
      // sku基本信息 pms_sku_info
      SkuInfoEntity info = getById(skuId);
      skuItemVo.setInfo(info);
      return info;
    }, threadPoolExecutor);
    CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync(res -> {
      // 获取spu销售属性组合
      List<SkuItemSaleAttrVo> saleAttrVos = attrValueService.getSaleAttrsBySpuId(res.getSpuId());
      skuItemVo.setSaleAttrs(saleAttrVos);
    }, threadPoolExecutor);

    CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync(res -> {
      // 获取spu的介绍 pms_spu_info_desc
      SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
      skuItemVo.setDesc(spuInfoDescEntity);
    }, threadPoolExecutor);
    // 获取spu的规格参数信息
    CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync(res -> {
      List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
      skuItemVo.setGroupAttrs(attrGroupVos);
    }, threadPoolExecutor);
    CompletableFuture<Void> imagesFuture = CompletableFuture.runAsync(() -> {
      // sku的图片信息 pms_sku_images
      List<SkuImagesEntity> images = skuImagesService.getImagesBySkuId(skuId);
      skuItemVo.setImages(images);
    }, threadPoolExecutor);

    // 查询当前sku是否参与秒杀优惠
    CompletableFuture<Void> seckillFuture = CompletableFuture.runAsync(() -> {
      R r = seckillFeignService.getSkuSeckillInfo(skuId);
      if (r.getCode() == 0) {
        SeckillInfoVo data = r.getData(new TypeReference<SeckillInfoVo>() {
        });
        skuItemVo.setSeckillInfo(data);
      }
    }, threadPoolExecutor);

    CompletableFuture.allOf(saleAttrFuture, descFuture, baseAttrFuture, imagesFuture, seckillFuture).get();
    return skuItemVo;
  }

}